12 results match your criteria australe cetaceum

  • Page 1 of 1

Distribution patterns of two species of Corynosoma (Acanthocephala: Polymorphidae) in fishes from Southwestern Atlantic.

Parasitol Res 2019 Oct 31;118(10):2831-2841. Epub 2019 Aug 31.

Laboratorio de Ictioparasitología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Funes 3350, 7600, Mar del Plata, Argentina.

Corynosoma australe and C. cetaceum are the most frequently reported acanthocephalans in fish from the Argentine Sea, particularly in central and northern areas. Their definitive hosts are otariids and odontocete cetaceans, respectively. Read More

View Article and Full-Text PDF
October 2019

Acanthocephalan parasites of the flounder species Paralichthys isosceles, Paralichthys patagonicus and Xystreurys rasile from Brazil.

Rev Bras Parasitol Vet 2019 Jun 13;28(3):346-359. Epub 2019 Jun 13.

Laboratório de Biologia de Tripanossomatídeos - LABTRIP, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz - FIOCRUZ, Rio de Janeiro, RJ, Brasil.

Flounders are commercially and economically important fish. A total of 120 specimens of flounders (60 Paralichthys isosceles, 30 Paralichthys patagonicus and 30 Xystreurys rasile) were collected off the coast of the state of Rio de Janeiro, Brazil. The fish were measured, necropsied and filleted, and then had their organs investigated for acanthocephalans. Read More

View Article and Full-Text PDF

Acanthocephalans from Marine Fishes from Patagonia, Argentina.

J Parasitol 2019 02;105(1):162-169

4   Instituto Cavanilles de Biodiversidad y Biología Evolutiva, Parque Científico, Universidad de Valencia, C/Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain.

In this study, 542 individual fish from 20 species from the Patagonian continental shelf of Argentina were examined for acanthocephalans. A total of 1,547 acanthocephalans belonging to 5 species were collected from 18 species of fish. Adult forms were represented by 2 species: Aspersentis johni ( Baylis, 1929 ) (Heteracanthocephalidae) from longtail southern cod, Patagonotothen ramsayi (Regan) (new host record), and Breizacanthus aznari Hernández-Orts, Alama-Bermejo, Crespo, García, Raga and Montero, 2012 (Arhythmacanthidae) from raneya, Raneya brasiliensis (Kaup). Read More

View Article and Full-Text PDF
February 2019

Morphology, performance and attachment function in Corynosoma spp. (Acanthocephala).

Parasit Vectors 2018 Dec 13;11(1):633. Epub 2018 Dec 13.

Instituto Cavanilles de Biodiversidad y Biología Evolutiva, Parque Científico, Universidad de Valencia, Catedrático José Beltrán 2, 46980, Paterna, Valencia, España.

Background: Functional inference on the attachment of acanthocephalans has generally been drawn directly from morphology. However, performance of structures is often non-intuitive and context-dependent, thus performance analysis should be included whenever possible to improve functional interpretation. In acanthocephalans, performance analysis of attachment is available only for Acanthocephalus ranae, a species that solely relies on the proboscis to attach. Read More

View Article and Full-Text PDF
December 2018

Gastrointestinal parasites of bottlenose dolphins Tursiops truncatus from the extreme Southwestern Atlantic, with notes on diet composition.

Dis Aquat Organ 2014 Feb;108(1):61-70

Instituto de Biología Marina y Pesquera Almirante Storni (IBMPAS), Güemes 1030, 8520 San Antonio Oeste, Río Negro, Argentina.

We surveyed the gastrointestinal tracts of 6 bottlenose dolphins Tursiops truncatus from Patagonia to check for helminth parasites and characterize dolphin diet. All dolphins harbored parasites (6477 helminths). We recorded 7 species, including nematodes Anisakis simplex s. Read More

View Article and Full-Text PDF
February 2014

Intestinal helminth fauna of the South American sea lion Otaria flavescens and fur seal Arctocephalus australis from northern Patagonia, Argentina.

J Helminthol 2013 Sep 12;87(3):336-47. Epub 2012 Sep 12.

Cavanilles Institute of Biodiversity and Evolutionary Biology, Science Park, University of Valencia, C/Catedrático José Beltrán 2, E-46980 Paterna, Valencia, Spain.

We report on the intestinal helminth fauna of 56 South American sea lions, Otaria flavescens, and 5 South American fur seals, Arctocephalus australis, from northern Patagonia, Argentina. A total of 97,325 helminth specimens were collected from sea lions. Gravid individuals were represented by 6 species of parasites: 1 digenean (Ascocotyle (Ascocotyle) patagoniensis), 1 cestode (Diphyllobothrium spp. Read More

View Article and Full-Text PDF
September 2013

Patterns of trunk spine growth in two congeneric species of acanthocephalan: investment in attachment may differ between sexes and species.

Parasitology 2012 Jun 6;139(7):945-55. Epub 2012 Feb 6.

Cavanilles Institute of Biology and Evolutionary Biology, University of Valencia, Calle Catedrático José Beltrán 2, E-46980, Paterna, Valencia, Spain.

Acanthocephalans have evolved a hooked proboscis and some taxa have trunk spines to attach to their definitive hosts. These structures are generated before being used, thus a key question is how investment in attachment could optimally be allocated through the ontogeny. The number and arrangement of hooks and spines are never modified in the definitive host, but it is unclear whether these structures grow during adult development. Read More

View Article and Full-Text PDF

Assessing host-parasite specificity through coprological analysis: a case study with species of Corynosoma (Acanthocephala: Polymorphidae) from marine mammals.

J Helminthol 2012 Jun 18;86(2):156-64. Epub 2011 Apr 18.

Unitat de Zoologia Marina, Institut Cavanilles de Biodiversitat y Biologia Evolutiva, Universitat de València, PO Box 22085, Valencia 46071, Spain.

In this paper we report an investigation of the utility of coprological analysis as an alternative technique to study parasite specificity whenever host sampling is problematic; acanthocephalans from marine mammals were used as a model. A total of 252 scats from the South American sea lion, Otaria flavescens, and rectal faeces from 43 franciscanas, Pontoporia blainvillei, from Buenos Aires Province, were examined for acanthocephalans. Specimens of two species, i. Read More

View Article and Full-Text PDF

The metazoan parasite communities of the Argentinean sandperch Pseudopercis semifasciata (Pisces: Perciformes) and their use to elucidate the stock structure of the host.

Parasitology 2009 Sep 23;136(10):1209-19. Epub 2009 Jul 23.

Laboratorio de Parasitología, Departamento de Biología, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Funes 3350 (7600) Mar del Plata, Argentina.

The use of parasites as biological tags allowed the identification of 3 stocks of Argentinean sandperch, Pseudopercis semifasciata (Cuvier), in the Argentine Sea. A total of 100 specimens caught in 3 zones: Villa Gesell (37 degrees 15'S, 57 degrees 23'W; n=20), Miramar (38 degrees 03'S, 57 degrees 30'W-38 degrees 44'S, 58 degrees 44'W; n=30) and Península Valdes (42 degrees 00'-42 degrees 45'S; n=50), were examined and 28 parasite species were found, 15 of them being new host records. Both univariate and multivariate analyses identified discrete stocks in each zone. Read More

View Article and Full-Text PDF
September 2009

Parasites in stranded cetaceans of Patagonia.

J Parasitol 2008 Aug;94(4):946-8

Laboratorio de Mamíferos Marinos, Centro Nacional Patagónico, Puerto Madryn, Chubut, Argentina.

There is an increasing interest in parasites of marine mammals of Argentina. Here, we examined several poorly known cetaceans, i.e. Read More

View Article and Full-Text PDF

Molecular phylogeny of Corynosoma Lühe, 1904 (Acanthocephala), based on 5.8S and internal transcribed spacer sequences.

J Parasitol 2005 Apr;91(2):345-52

Departamento de Inmunología, Instituto de Investigaciones Biomédicas, UNAM, A.P. 70228, 04510 Mexico D.F., Mexico.

Species of Corynosoma (Acanthocephala) are distributed worldwide as parasites of marine mammals and sea birds. Species diagnosis is based on morphological characters, including the size and number of hooks in the proboscis and the number of spines in the dorsal and ventral regions of the body. We inferred the phylogenetic relationships of 10 nominal species of Corynosoma through analysis of internal transcribed spacers (ITS-1, ITS-2) and 5. Read More

View Article and Full-Text PDF

Corynosoma australe Johnston, 1937 and C. cetaceum Johnston & Best, 1942 (Acanthocephala: Polymorphidae) from marine mammals and fishes in Argentinian waters: allozyme markers and taxonomic status.

Syst Parasitol 2005 Jun;61(2):143-56

Laboratorio de Parasitología, Departamento de Biología, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Funes 3350, 7600 Mar del Plata, Argentina.

Genetic and morphological studies were carried out on acanthocephalans belonging to Corynosoma Lühe, 1904 and referable to the species C. cetaceum Johnston & Best, 1942 and C. australe Johnston, 1937, which were recovered from both definitive and intermediate hosts in Argentinian waters. Read More

View Article and Full-Text PDF
  • Page 1 of 1